package collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class LambdaDemo {
    public static void main(String[] args) {
        List<String> list=new ArrayList<>();
        list.add("1");
        list.add("2");
        list.add("3");
       /* Collections.sort(list, new Comparator<String>() {
            public int compare(String o1, String o2) {
                return o1.length()-o2.length();
            }
        });
        Collections.sort(list,(String o1,String o2)->{
            return o1.length()-o2.length();
        });
        Collections.sort(list,(o1,o2)-> o1.length()-o2.length());

        */
        Collections.sort(list,(o1,o2)->o1.length()-o2.length());
        ;
    }
}
